Mixing attachment for high-speed machines for pulping foodstuffs, etc.



Oct. 23, 1951 QERTL] MIXING ATTACHMENT FOR HIGH-SPEED MACHINES FORPULPING FOODSTUFFS, ETC Filed July 26, 1947 Patented Oct. 23, 1951MIXING ATTACHMENT" FUR HIGH-"SPEED MACHINES FOR PULPIN'GFOOD'S-T-UFFS,

ETC.

1 Traugott OertIi, Zurich, Switzerland Application July 26, 1947,"Serial 'No'. 763,945

n In Switzerland 'Januaryi23, 1946 Section 1, Public Law 69.0,,h1 1gusti3, Patent expires J ari'u'ar'y 23, 1966 i can. (01. 259-168 For pulpingfruits, vegetables, nuts and other articles of foods machines withrotating cutters are used which develop a speed of about 12,000revolutions per minute. There are certain chemical and natural productssuch as cream, white of egg, etc. which can be processed only bywhipping. A drawback of the high-speed machines hitherto used was thatthey could not be employed for this purpose.

The present invention relates to an attachment for high-speed machinesfor pulping foodstuffs, etc. by means of which cream etc. can be beatenor whipped.

The attachment according to the invention is distinguished by a fixtureincorporating a whipping and beating unit and a reduction gear. Thefixture is designed in such a way that it can be attached to ahigh-speed driving unit without any modification of the latter andenables beating and whipping to be carried out at a reduced, normalrotative speed despite the high-speed drive.

In the enclosed drawing a constructional embodiment of the invention isexemplified:

The figure is a front-view of the high-speed machine and a section ofthe attachment arranged on it.

On the drawing, the reference numeral I designates the high-speeddriving unit which is designed in a manner similar to that described inSwiss Patent No. 236,730 and serves for producing homogeneous mixtures.Its driving shaft turns at a speed of about 12,000 R. P. M. The drivingunit is used for pulping foodstuffs, etc. Instead of the known glassfixture, a fixture is arranged which consists of a bowl-shapedreceptacle or vessel 2 diverging upwards and open at the top and ahollow base chamber 3. The vessel 2 and the base 3 are rigidly connectedto each other by screws which are not shown. To this end the vessel 2 isdie-cast in aluminum and is highly polished on the outside. 4 designatesan axial shaft bearing of the vessel 2 which projects above the latterand through which the driving axle 5 passes. At the upper end of thedriving axle 5, which has a polygonal head 6, the double-bladed agitatorI is fixed. The agitator I has a bridge 8 which projects beyond theupper edge of the vessel 2 and carries a bush 9 provided with a polygonal cavity Hi, fitting the polygonal head .6 which engages therein.The blades 1' and 'I" of the agitator 1 are of different design with aview to increasing the whipping or beating efiect. In the blade 1 theribs 64 are horizontal whereas in the blade 1" the ribs 64 are vertical.

In the cavity 20 of the base 3 the reduction gear H is arranged, whichconsists of interengaging spindles and compound gears. In the bottom ofthe base 3 is fitted a rotary member or sleeve I3 provided with apolygonal hole l2 connected to the driving spindle M. The upper end ofthe spindle I4 has a pin l5 of smaller diameter which engages asreciprocal guide in the cylindrical guide IS in the collar I! at thelower end of the driving axle 5. The collar I! is provided with thetoothed rim l8 and this forms part of the reduction gear. The high-speedmain driving shaft [9 engages in the polygonal hole 12 of the rotarysleeve l3. The driving shaft I9 is connected to the driving motor, whichis not specified. The driving shaft [9 is operationally connected to thedriving shaft 5 through the parts ll, [4 and I8 and the interposedreduction gear reduces the speed of, say 12,000 R. P. M. in the maindriving shaft [9 to 250 in the driving axle 5.

The attachment described permits of beating and whipping cream, white ofegg, etc. at normal speed with a high-speed chopping machine. Thefixture frame can easily be dismounted together with the agitator vane,whereupon the pulp or liquid processed can be removed withoutdifliculty. The vessel 2 normally holds 1 litre, but a smaller orgreater capacity can, of course, be provided for.

The agitator may, as is known, be arranged eccentrically or in aslanting position, so that the whipping or beating units do not turn ina circle or in the horizontal plane.

The vessel 2 of the base 3 and the agitator are specially die-cast inaluminium, which makes the attachment relatively light in weight.Furthermore, it is corrosion-resistant and non-poisonous in contact withall types of foodstuff and imparts no unpleasant taste to the productsprocessed. The agitator may, of course, be designed with whipping whisksor forks, etc. instead of blades.

While the form of embodiment of the invention as herein disclosed,constitutes a preferred form, it is to be understood that some changesmay be made in the arrangement, construction and combination of thevarious parts of my invention, and it is my intention to cover by myclaim such changes as may reasonably be included within the scopethereof.

I claim as my invention:

A whipping and agitating unit for attachment to a high-speed drivingbase, said unit comprising a bowl-like receptacle having an annularlychanneled bottom wall and an upstanding cenwith the upper end of theaxle extending above said guide and the lower end thereof extendingbelow the bottom wall of the receptacle, an agitator element having across bridge at its upper end interfittingly engaged with the upper endof the driving axle and disposed above theupper edge of the bowl, saidagitator element having paddle portions depending from the cross bridgeinto the receptacle with the lower ends of the paddle portionsconforming with the arcuate bottom wall of the receptacle and in closeproximity thereto, a housing attached to the bottom of the receptacleand speed reduction gearing in the housing forming communication betweenthe axle and driving base.

TRAUGOTT OERTLI.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1 1,182,752 Campbell May 9, 19161,602,060 White Oct. 5, 1926 1,823,314 Brewer Sept. 15, 1931 1,985,604Fitzgerald Dec. 25, 1934 2,028,595 Flegel Jan. 21, 1936 2,109,501 OsiusMar. 1, 1938 Piper Sept; 3, 1940

